To my extensive knowledge, there isn't such a word as bryllium. There is another word though that is nearly identical to this. It's Beryllium. This object is a chemical element and has the atomic number four on the Periodic Table. This mineral is created in stars and is extremely rare. It has electronic and acoustic uses.
I do not know of "bryllium" perhaps you men "beryllium":Beryllium was discovered by Louis-Nicolas Vauquelin in 1798 as a component of beryl and in emeralds. Friedrich Wöhler and Antoine Bussy independently isolated the metal in 1828 by reacting potassiumand beryllium chloride. Beryllium's chemical similarity to aluminum was probably why beryllium was missed in previous searches.
There are currently 118 different elements in the periodic table. Here is a list of the symbols: Ac Actinium, Ag Silver, Al Aluminum, Am Americium, Ar Argon, As Arsenic, At Astatine, Au Gold, B Boron, Ba Barium, Be Bryllium, Bh Bohrium, Bi Bismut, Bk Berkelium, Br Bromine, C Carbon, Ca Calcium, Cd Cadmium, Ce Cerium, Cf Californium, Cl Chlorine, Cm Curium, Cn Copernicium, Co Cobalt, Cr Chromium, Cs Cesium, Cu Copper, Db Dubnium, Ds Darmstadtium, Dy Dysprosium, Er Erbium, Es Einsteinium, Eu Europium, F Fluorine, Fe Iron, Fl Flerovium, Fm Fermium, Fr Francium, Ga Gallium, Gd Gadolinium, Ge Germanium, H Hydrogen, Helium, Hf Hafnium, Hg Mercury, Ho Holmium, Hs Hassium, I Iodine, In Indium, Ir Iridium, K Potassium, Kr Krypton, La Lanthanum, Li Lithium, Lr Lawrencium, Lu Lutetium, Lv Livermorium, Md Mendelevium, Mg Magnesium, Mn Manganese, Mo Molybdenum, Mt Meitnerium, N Nitrogen, Na Sodium, Nb Niobium, Nd Neodymium, Ne Neon, Ni Nickel, No Nobelium, Np Neptunium, O Oxygen, Os Osmium, P Phosphorus, Pa Protactinium, Pb Lead, Pd Palladium, Pm Promethium, Po Polonium, Pr Praseodymium, Pt Platinum, Pu Plutonium, Ra Radium, Rb Rubidium, Re Rhenium, Rf Rutherfordium, Rg Roentgenium, Rh Rhodium, Rn Radon, Ru Ruthenium, S Sulfur, Sb Antimony, Sc Scandium, Se Selenium, Sg Seaborgium, Si Silicon, Sm Samarium, Sn Tin, Sr Strontium, Ta Tantalum, Tb Terbium, Tc Technetium, Te Tellurium, Th Thorium, Ti Titanium, Tl Thallium, Tm Thulium, U Uranium, Uuuo Ununoctium, Uup Ununptneium, Uus Ununseptium, Uut Ununtrium, V Vanadium, W Tungsten, Xe Xenon, Y Yttrium, Yb Ytterbium, Zn Zinc, Zr Zirconium.